CN215048039U - Simple tool for hoisting and assembling large-diameter bearing for transmission shaft - Google Patents
Simple tool for hoisting and assembling large-diameter bearing for transmission shaft Download PDFInfo
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- CN215048039U CN215048039U CN202120750186.8U CN202120750186U CN215048039U CN 215048039 U CN215048039 U CN 215048039U CN 202120750186 U CN202120750186 U CN 202120750186U CN 215048039 U CN215048039 U CN 215048039U
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Abstract
The utility model provides a simple and easy frock of major diameter bearing handling and assembly for transmission shaft, include: the device comprises a hoisting ring, an oil tank, a detection tool, a traction hoisting device and a base, wherein the hoisting ring is used for supporting and clamping a large-diameter bearing during hoisting, the oil tank is used for heating the large-diameter bearing, the detection tool is used for detecting the expansion degree of the inner diameter of the heated large-diameter bearing, the traction hoisting device is used for realizing hoisting work, and the base is used for vertically fixing a transmission shaft; the traction lifting device is responsible for lifting and transporting the large-diameter bearing clamped and fixed by the lifting ring into the oil tank for heating, the inner diameter of the large-diameter bearing is measured by the detection tool when the heating reaches the predicted time, the measurement is in accordance with the preset requirement, and the large-diameter bearing is continuously lifted and transported to the upright transmission shaft on the base for hot charging.
Description
Technical Field
The utility model relates to a steel rolling production technical field for the metallurgical industry particularly, especially, relate to a transmission shaft is with simple and easy frock of major diameter bearing handling and assembly.
Background
The large-diameter bearings are commonly used for rolling mills and shearing machines on production lines of deformed steel, copper strips, medium plates, bars, wires and the like, a plurality of large-diameter bearings are usually required to be arranged on a transmission shaft of the large-diameter bearings, and radial pressure is generated through interference fit between the transmission shaft and a bearing inner ring, so that axial friction force is formed to ensure synchronous rotation of the transmission shaft and the bearing inner ring.
When the large-diameter bearing is lifted and assembled, the working procedures are required to be smoothly connected, the operation skill is skillful, and the success of one-time hot assembly in a short time is ensured. In actual assembly, the following key difficulties exist:
1. the hoisting tool is complex in structure, high in comprehensive quality requirement on operators and high in operation difficulty.
2. Bearing frock dismantles consuming time hard, and handling and assembly efficiency are low.
3. The bearing outer ring is not easy to level, and the assembly clamping stagnation is caused by the inclination, so that the assembly precision is influenced.
Disclosure of Invention
According to the technical problem provided by the invention, the simple tool for hoisting and assembling the large-diameter bearing for the transmission shaft is provided.
The utility model discloses a technical means as follows:
the utility model provides a simple and easy frock of major diameter bearing handling and assembly for transmission shaft, includes:
the device comprises a hoisting ring, an oil tank, a detection tool, a traction hoisting device and a base, wherein the hoisting ring is used for supporting and clamping a large-diameter bearing during hoisting, the oil tank is used for heating the large-diameter bearing, the detection tool is used for detecting the expansion degree of the inner diameter of the heated large-diameter bearing, the traction hoisting device is used for realizing hoisting work, and the base is used for vertically fixing a transmission shaft;
after the hoisting ring is rolled into a circular outline by a whole steel plate, the diameter of the hoisting ring is matched with the outer diameter of the large-diameter bearing, two end parts of the hoisting ring are bent into a hinge plate which can be attached, and a plurality of bolt assembling holes are processed on the hinge plate;
a plurality of lifting lug plates are uniformly welded on the outer circle of the lifting ring, and lifting round holes for a lifting appliance of the traction lifting device to penetrate are processed in the middle of the lifting lug plates;
the lower part of the lifting lug plate is provided with an L-shaped plate group, the vertical plate part of the L-shaped plate is welded on the outer ring surface of the steel plate, the horizontal plate part penetrates through the lower surface of the steel plate and extends inwards in the radial direction, and the horizontal plate part plays a role in supporting and positioning when the large-diameter bearing is lifted;
the detection tool is used for detecting whether the internal diameter expansion degree of the heated large-diameter bearing meets the hot charging requirement or not, and is formed by welding five round steels including a round steel I, a round steel II, a round steel III, a round steel IV, a round steel V and the like, wherein the length L of the round steel I is equal to the internal diameter D of the large-diameter bearing and is horizontally placed at the bottommost end, the round steel III is vertically fixed with the middle part of the round steel I, the round steel IV is fixed at the top end of the round steel III, one ends of the round steel II and the round steel V are fixed at the middle upper part of the round steel III, one end of the round steel II and one end of the round steel V are fixed on the round steel I, and finally the round steel II, the round steel V405 and the round steel I form a triangular frame structure;
the traction lifting device is used as a lifting tool to integrally lift the lifting ring and the large-diameter bearing, so that the large-diameter bearing is ensured to be in a horizontal state.
Furthermore, the hoisting and hauling device adopts a hoist guide chain hoisting device.
Compared with the prior art, the utility model has the advantages of it is following:
1. simplify handling frock structural style, simple accurate reduces the assembly degree of difficulty.
2. Transfer frock maneuverability is strong, promotes assembly efficiency.
3. The whole device is simple in structure and convenient to maintain.
The simple tool for hoisting and assembling the large-diameter bearing can be widely applied to equipment such as rolling mills, shearing machines and the like on production lines of deformed steel, rod wires, copper strips and medium plates, can be widely applied in assembly workshops and maintenance workshops, simplifies the tool structure, reduces the assembly difficulty, improves the assembly efficiency, and gains considerable economic benefit for users.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that some embodiments of the present invention can be obtained from other drawings without creative efforts for those skilled in the art.
Fig. 1 is the utility model discloses major diameter bearing handling frock schematic diagram.
Fig. 2 is the schematic diagram of the hoisting ring structure of the present invention.
Fig. 3 is a schematic structural diagram of the oil tank heating of the present invention.
Fig. 4 is a schematic view of the structure of the detection tool of the present invention.
Fig. 5 is the utility model discloses major diameter bearing assembly fixture sketch map.
In the figure: 1. hoisting ring 2, major diameter bearing 3, oil tank 4, detection tool 5, traction hoisting device 6, transmission shaft 7 and foundation base
101. Steel plate 102, lug plate 103, L-shaped plate 104, bolt 105, nut 106, washer 1101 and hinge plate
401. Round steel I402, round steel II 403, round steel III 404, round steel IV 405 and round steel V.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1-5, the utility model provides a simple and easy frock of major diameter bearing handling and assembly for transmission shaft, include:
the device comprises a hoisting ring 1 for supporting and clamping the large-diameter bearing 2 during hoisting, an oil tank 3 for heating the large-diameter bearing 2, a detection tool 4 for detecting the expansion degree of the inner diameter of the heated large-diameter bearing 2, a traction hoisting device 5 for realizing hoisting work and a base 7;
after the hoisting ring 1 is rolled into a circular outline by a whole steel plate 101, the diameter of the hoisting ring is matched with the outer diameter of the large-diameter bearing 2, two end parts of the hoisting ring are bent into a hinge plate 1101 capable of being attached, and a plurality of bolt assembling holes are processed in the hinge plate 1101; subsequently screwing the fastener bolt 104, the nut 105 and the washer 106 to serve as an auxiliary element for clamping and hoisting the large-diameter bearing 2 by the hoisting ring 1;
the base 7 is a simple tool for welding steel plates, and is used for vertically fixing the transmission shaft 6 so as to facilitate the hot assembly of the large-diameter bearing 2 in a hot state;
a plurality of lifting lug plates 102 are uniformly welded on the outer circle of the lifting ring 1, and lifting round holes for drawing a lifting appliance of the lifting device 5 to penetrate are formed in the middle of the lifting lug plates 102;
1 group of L-shaped plates are arranged below the lug plate 102, the vertical plate parts of the L-shaped plates are welded on the outer ring surface of the steel plate 101, the horizontal plate part penetrates through the lower surface of the steel plate 101 and extends inwards in the radial direction, and the horizontal plate part plays a role in supporting and positioning when the large-diameter bearing 2 is hoisted;
the detection tool 4 is used for detecting whether the internal diameter expansion degree of the heated large-diameter bearing 2 meets the hot charging requirement or not, the detection tool 4 is formed by welding five round steels such as a round steel I401, a round steel II 402, a round steel III 403, a round steel IV 404 and a round steel V405, wherein the length L of the round steel I401 is equal to the internal diameter D of the large-diameter bearing 2 and is horizontally placed at the bottommost end, the round steel III 403 is vertically fixed with the middle part of the round steel I401, the round steel IV 404 is fixed at the top end of the round steel III 403, one ends of the round steel II 402 and the round steel V405 are fixed at the middle upper part of the round steel III 403, one end of the round steel II 402 and one end of the round steel V405 are fixed on the round steel I401, and finally the round steel II 402 and the round steel V405 and the round steel I401 form a triangular frame structure;
the traction lifting device 5 is used as a lifting tool to integrally lift the lifting ring 1 and the large-diameter bearing 2, so that the large-diameter bearing 2 is ensured to be in a horizontal state.
Further, the hoisting and conveying device 5 is a hoist device with a hoist guide chain 5.
Adopt above-mentioned technical scheme the utility model discloses hoist and mount principle and process do:
by taking the bearing at the end part of the main transmission shaft of the double-sided shear as an example, the hoisting tool of the large-diameter bearing is introduced, and the process is as follows:
firstly, the hoisting ring 1 is prefabricated and molded. According to the outer diameter of the large-diameter bearing 2, the total length of the steel plate 101 is selected, and the hinge plate 1101 at the end part is considered when the total length of the steel plate 101 is cut out, so that a margin is left.
Pre-bending a steel plate 101 into a circle, enabling the radius of the steel plate to be matched with the outer diameter of the large-diameter bearing 2, reserving margins at two ends of the steel plate, and marking; and turning the end hinge plates 1101 at two ends of the steel plate 101 upwards by using a pair of hand pliers for prefabricating and forming, after the steel plate 101 is rolled into a circular outline, adhering the hinge plates 1101 at two ends, and tightening by using thin steel wires.
Two round holes (a subsequent bolt 104, a nut 105 and a gasket 106 are screwed and assembled to facilitate the hoisting of the large-diameter bearing 2 clamped by the hoisting ring 1) are drilled and assembled in the hinge plates 1101 at the two ends, 3 groups of the lug plates 12 are uniformly welded on the outer circle of the steel plate 101, a round hole is machined in the middle of each group of the lug plates 12, and 1 group of L-shaped plates is arranged below each group of the lug plates 102.
In the second step, the inspection tool 4 is prefabricated. The device is formed by welding five round steels such as I round steel 401, II round steel 402, III round steel 403, IV round steel 404 and V round steel 405, wherein the I round steel 401 is a detection part, the IV round steel 404 is a handheld part, the III round steel 403 is a connecting part, and the II round steel 402 and the V round steel 405 are supporting parts.
And thirdly, detecting the inner diameter of the large-diameter bearing 2 after heating and expansion. The oil tank 3 is used to heat the large diameter bearing 2 in preparation for its hot-fill. The oil tank 3 is lifted to a proper position, and the bottom is guaranteed to be stable. The hoisting crane hoists the lug plate 12 through a hoist guide chain (a traction hoisting device 5), integrally hoists the hoisting ring 1 and the large-diameter bearing 2, manually adjusts the hoist guide chain 5, and after the large-diameter bearing 2 is ensured to be in a horizontal state through detection, the hoisting crane is placed into the oil tank 3; and (3) pouring refined oil into the oil tank 3 until the refined oil submerges the upper end face of the large-diameter bearing 2 for a certain distance, and heating the oil in the oil tank 3 to 130 ℃ until the large-diameter bearing 2 is uniformly heated.
The length L of round steel I401 equals the internal diameter D of major diameter bearing 2, uses the bearing of bilateral scissors final drive shaft tip as an example, and internal diameter D is 800mm, and internal diameter inflation volume computational formula is as follows during the bearing heating:
△d＝a×D0×(T1-T0)
wherein:
delta d is the inner diameter expansion amount of the heated bearing, mm;
a is the expansion coefficient of the bearing steel wire, and the value is 1.25 multiplied by 10-5；
D0The initial diameter of the bearing is D-800 mm;
t1 is the temperature of the bearing after heating, and the value is 130 ℃;
t0 is the initial temperature of the bearing, and the value is 20 ℃ at room temperature;
then D is a × D0×(T1-T0)＝1.25×10-5×800×(130-20)mm＝1.1mm
That is, the inner diameter of the heated large-diameter bearing 2 is 801.1mm, the length L of the round steel I401 is 800mm, and the gaps on one side are 0.55mm respectively.
Hoisting ring 1 and major diameter bearing 2 are wholly hoisted to the oil level, and I401 of round steel of detection instrument 4 is explored into the internal diameter of major diameter bearing 2, when can going out smoothly, explains that the 2 inflation volumes of major diameter bearing have reached the hot-packing requirement, can develop work next step.
And fourthly, hot assembling the large-diameter bearing 2. The basic base 7 is a simple tool for splicing and welding steel plates and is used for vertically fixing the transmission shaft 6 and facilitating hot assembly of the large-diameter bearing 2. After the hoisting ring 1 and the large-diameter bearing 2 are integrally hoisted by the hoisting crane through the hoist guide chain 5, an inner hole of the large-diameter bearing 2 penetrates downwards from the top of the vertical transmission shaft 6 until the hot assembly is in place, and the assembly is completed. The whole hoisting and hot-fitting process is smooth in action connection, the hot-fitting action is skillful, and one-time assembly success is ensured.
And fifthly, ending the work. And detecting and recording key parameters such as the positioning size and the assembly clearance of the large-diameter bearing 2. The nut 105 is unscrewed with the aid of a wrench, the bolt 104 and the washer 106 are removed, and the lifting ring 1 is disassembled. After the refined oil is cooled to the room temperature, the refined oil is recovered, and the oil tank 3 is cleaned.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (2)
1. The utility model provides a simple and easy frock of major diameter bearing handling and assembly for transmission shaft which characterized in that includes:
the device comprises a hoisting ring (1) for supporting and clamping the large-diameter bearing (2) during hoisting, an oil tank (3) for heating the large-diameter bearing (2), a detection tool (4) for detecting the expansion degree of the inner diameter of the heated large-diameter bearing (2), a traction hoisting device (5) for realizing hoisting work and a base (7) for vertically fixing a transmission shaft (6);
after the hoisting ring (1) is rolled into a circular outline by a whole steel plate (101), the diameter of the hoisting ring is matched with the outer diameter of the large-diameter bearing (2), two end parts of the hoisting ring are bent into a hinge plate (1101) capable of being attached, and a plurality of bolt assembling holes are processed in the hinge plate (1101);
a plurality of lifting lug plates (102) are uniformly welded on the outer circle of the lifting ring (1), and lifting round holes for a lifting appliance of a traction lifting device (5) to penetrate are processed in the middle of each lifting lug plate (102);
1 group of L-shaped plates are arranged below the lug plate (102), the vertical plate parts of the L-shaped plates are welded on the outer ring surface of the steel plate (101), the horizontal plate parts penetrate through the lower surface of the steel plate (101) and extend inwards in the radial direction, and the horizontal plate parts play a role in supporting and positioning when the large-diameter bearing (2) is hoisted;
the detection tool (4) is used for detecting whether the inner diameter expansion degree of the heated large-diameter bearing (2) meets the hot charging requirement or not, the detection tool (4) is formed by welding five round steels such as a round steel I (401), a round steel II (402), a round steel III (403), a round steel IV (404) and a round steel V (405), wherein the length L of the round steel I (401) is equal to the inner diameter D of the large-diameter bearing (2) and is horizontally placed at the bottommost end, the round steel III (403) is vertically fixed with the middle part of the round steel I (401), the round steel IV (404) is fixed at the top end of the round steel III (403), one ends of the round steel II (402) and the round steel V (405) are fixed at the middle upper end of the round steel III (403) and fixed on the round steel I (401), and finally the round steel II (402) and the round steel V (405) form a triangular frame structure with the round steel I (401);
the traction lifting device (5) is used as a lifting tool to integrally lift the lifting ring (1) and the large-diameter bearing (2) and ensure that the large-diameter bearing (2) is in a horizontal state.
2. The simple tool for hoisting and assembling the large-diameter bearing for the transmission shaft according to claim 1, is characterized in that,
the traction and hoisting device (5) adopts a hoist guide chain hoisting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120750186.8U CN215048039U (en) | 2021-04-13 | 2021-04-13 | Simple tool for hoisting and assembling large-diameter bearing for transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120750186.8U CN215048039U (en) | 2021-04-13 | 2021-04-13 | Simple tool for hoisting and assembling large-diameter bearing for transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215048039U true CN215048039U (en) | 2021-12-07 |
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ID=79149421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120750186.8U Active CN215048039U (en) | 2021-04-13 | 2021-04-13 | Simple tool for hoisting and assembling large-diameter bearing for transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215048039U (en) |
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2021
- 2021-04-13 CN CN202120750186.8U patent/CN215048039U/en active Active
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